Global Patent Index - EP 0978017 A1

EP 0978017 A1 20000209 - DUAL LAYER PHOTOCONDUCTORS WITH CHARGE GENERATION LAYER CONTAINING HINDERED HYDROXYLATED AROMATIC COMPOUND

Title (en)

DUAL LAYER PHOTOCONDUCTORS WITH CHARGE GENERATION LAYER CONTAINING HINDERED HYDROXYLATED AROMATIC COMPOUND

Title (de)

DOPPELSCHICHTIGES PHOTOLEITFÄHIGES ELEMENT MIT EINER LADUNGSERZEUGENDEN SCHICHT WELCHE EINE STERISCH GEHINDERTE AROMATISCHE HYDROXYLVERBINDUNG ENTHÄLT

Title (fr)

PHOTOCONDUCTEURS A DOUBLE COUCHE MUNIS D'UNE COUCHE GENERATRICE DE CHARGE COMPRENANT UN COMPOSE AROMATIQUE HYDROXYLE ENCOMBRE

Publication

EP 0978017 A1 20000209 (EN)

Application

EP 99906907 A 19990210

Priority

  • US 9902935 W 19990210
  • US 2375398 A 19980213

Abstract (en)

[origin: WO9941643A1] Photoconductors comprise a substrate, a charge transport layer, and a charge generation layer. The charge transport layer comprises binder and a charge transport compound comprising at least one of a hydrazone, aromatic amine, or substituted aromatic amine, and the charge generation layer comprises binder, a phthalocyanine charge generating compound and a hindered hydroxylated aromatic compound. The hindered hydroxylated aromatic compound reduces electrical fatigue upon cycling without adversely effecting the electrical performance of the photoconductors.

IPC 1-7

G03G 5/06; G03G 5/09

IPC 8 full level

G03G 5/047 (2006.01); G03G 5/06 (2006.01)

CPC (source: EP US)

G03G 5/047 (2013.01 - EP US); G03G 5/061443 (2020.05 - EP US); G03G 5/0616 (2013.01 - EP US); G03G 5/0664 (2013.01 - EP US); G03G 5/0696 (2013.01 - EP US); Y10S 430/103 (2013.01 - EP US)

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

WO 9941643 A1 19990819; AU 2670899 A 19990830; EP 0978017 A1 20000209; EP 0978017 A4 20020508; US 5972549 A 19991026

DOCDB simple family (application)

US 9902935 W 19990210; AU 2670899 A 19990210; EP 99906907 A 19990210; US 2375398 A 19980213